Isochrone based on a route line?

[Dev_Stuv]

Hi guys, i was wondering if its possible to calculate an isochrone area based on a route line? i like to calculate the time u spend on retouring from a route to get to a specific place. i couldnt get it working so now i solved it with blocksystem, i found on an old goolge lib. but i think isochrone can do a much more detailed job.

any idea how to do this?

thanks

[jobe1]

You could calculate an isochrone for each intersection (each point your vehicle can exit the route) and merge them using something like JTS Topology Suite to get a route isochrone. For better performance you could cache often used intersections such as highway exits. I’ve attached an image of how it looks